Ever since you got the message from the support that they are carrying out an investigation. Have you tried to reach out to them more or so recently? What was/has been their response about the investigation?
1.5 BTC is now worth

I sent documents several times, there is no investigation, it's account where 1.7 BTC left in 2015 when it was around $300 and in 2017 they alow me withdraw 0.2 BTC (I withdrawal it to check if it would arrive) and after that they blocked the login and aks for all possible documents and when they realized that everything is correct they always send the same email that they will let me know when the investigation is end. They simply don't want to pay because they are scammers.
Hey, I looked into your original thread and you said the way you found out in 2015 that you had bitcoin on your account is because someone from Cloudbet emailed you saying you have bitcoin?
I looked into our records and no such email exists, are you sure it was from us and not an external scammer? What is your username on that account?
We would love to help but I'm not seeing a record for this. As this is not a customer service thread, can you email
support@cloudbet.com. I've informed them you will be messaging them.